US10930246B2 - Display device for adjusting color temperature of image and display method for the same - Google Patents
Display device for adjusting color temperature of image and display method for the same Download PDFInfo
- Publication number
- US10930246B2 US10930246B2 US16/698,669 US201916698669A US10930246B2 US 10930246 B2 US10930246 B2 US 10930246B2 US 201916698669 A US201916698669 A US 201916698669A US 10930246 B2 US10930246 B2 US 10930246B2
- Authority
- US
- United States
- Prior art keywords
- display
- sensor
- image
- brightness
- processor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 23
- 230000000694 effects Effects 0.000 claims description 29
- 238000004891 communication Methods 0.000 claims description 28
- 238000005286 illumination Methods 0.000 claims description 11
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 230000006870 function Effects 0.000 description 16
- 230000008859 change Effects 0.000 description 14
- 230000014509 gene expression Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010422 painting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
- H04N5/58—Control of contrast or brightness in dependence upon ambient light
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
- H04N21/4436—Power management, e.g. shutting down unused components of the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/027—Arrangements or methods related to powering off a display
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2354/00—Aspects of interface with display user
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
- G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2380/00—Specific applications
- G09G2380/16—Digital picture frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
Definitions
- the present disclosure relates to a display device for adjusting a color temperature of an image, capable of providing a picture frame function, and a display method for the same.
- a display device such as a television (TV) provides a specific function (e.g., a function of reproducing of image content) in an ON state.
- a specific function e.g., a function of reproducing of image content
- the display device may be turned off (a device off).
- a conventional display device may be maintained in a black-screen state if turned off.
- the display device may be used as an electronic picture frame for outputting a photograph, a picture, and a work of art on a display.
- the conventional display device may provide the resistance to a user having analog sensibility.
- the display device is a light emitting device including a display panel or a backlight, the display device may not greatly affected by a color temperature of light (e.g., illuminance) incident thereto from the outside. Accordingly, the picture frame displayed on the conventional display device cannot help having a difference from a real picture frame in terms of a texture, a color, or the like.
- an aspect of the present disclosure is to provide a display device for adjusting the color temperature of the image, capable of providing a picture frame function by considering color variation due to light incident thereto from the outside, and a display method for the same.
- a display device includes a display, a sensor module which senses a color temperature of light incident to the sensor module from an outside of the display device, and a processor electrically connected to the display and the sensor module.
- the processor operates in a first mode or a second mode or is turned off, depending on a user input, outputs a moving picture to the display in the first mode, outputs a still image to the display if detecting a user, turns off the display if failing to detect the user, in the second mode, adjusts a color temperature of the still image based on the color temperature sensed by using the sensor module in outputting the still image, and outputs the still image having the adjusted color temperature to the display.
- a display method includes determining switching to a second mode from a first mode of outputting a moving picture or from a device off state, depending on a user, sensing a user if determining of switching to the second mode, outputting a still image to a display if sensing the user, and turning off the display if failing to sense the user.
- the outputting of the still image on the display includes sensing a color temperature of light incident from an outside of the display device, adjusting a color temperature of the still image based on the color temperature of the still image and the sensed color temperature of the light, and outputting the still image having the adjusted color temperature to the display.
- the screen of the electronic picture frame is adjusted by considering the influence by light incident from the outside such that the electronic picture frame more looks like a real picture frame for paper.
- FIG. 1 is a block diagram illustrating a display device, according to an embodiment of the present invention.
- FIG. 2 is a view illustrating a shadow effect, according to an embodiment of the present invention.
- FIG. 3 is a view illustrating controlling a picture frame function, according to an embodiment of the present invention.
- FIG. 4 is a flowchart illustrating adjusting a still image, according to an embodiment of the present invention.
- an element e.g., a first element
- another element e.g., a second element
- the element may be directly coupled with/to or connected to the another element or an intervening element (e.g., a third element) may be present there between.
- the expression “adapted to or configured to” used herein may be interchangeably used with, for example, the expression “suitable for”, “having the capacity to”, “changed to”, “made to”, “capable of”, or “designed to” “adapted to”, “made to”, or “capable of”.
- the expression “a device configured to” may mean that the device is “capable of” operating together with another device or other components.
- a “processor configured to (or adapted to) perform A, B, and C” may mean a dedicated processor (e.g., an embedded processor) for performing a corresponding operation or a generic-purpose processor (e.g., a central processing unit (CPU) or an application processor) which may perform corresponding operations by executing one or more software programs which are stored in a memory device.
- a dedicated processor e.g., an embedded processor
- a generic-purpose processor e.g., a central processing unit (CPU) or an application processor
- FIG. 1 is a block diagram illustrating a display device, according to an embodiment of the present invention
- FIG. 2 is a view illustrating a shadow effect, according to an embodiment of the present invention.
- a display device 10 may include a display module 110 , a sensor module 120 , a communication module 130 , a memory 140 , an input module 160 , and a processor 150 .
- some elements may be omitted or additional elements may be provided.
- some of the elements may be combined with each other so as to form one entity and the functions of the elements may be performed in the same manner as before the combination.
- the display device 10 may include at least one of a television (TV), a monitor, a notebook computer, a large format display (LFD), a smartphone, a tablet personal computer (PC), a mobile phone, a video telephone, an e-book reader, a desktop personal computer, a laptop personal computer, a netbook computer, a personal digital assistant (PDA), a portable multimedia player (PMP), an MP3 player, a camera, a wearable device, or an electronic picture frame.
- TV television
- a monitor a notebook computer
- LFD large format display
- PC tablet personal computer
- PDA personal digital assistant
- PMP portable multimedia player
- MP3 player MP3 player
- a display 111 may include, for example, a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic LED (OLED) display, or an electronic paper display.
- LCD liquid crystal display
- LED light-emitting diode
- OLED organic LED
- FIG. 1 and the present specification the case that the display module 110 includes the display 111 and a backlight 115 has been described for the illustrative purpose.
- the display 111 may display various contents (e.g., a text, an image, a video, an icon and/or a symbol) to a user.
- the backlight 115 may be omitted when the display 111 is OLED.
- the sensor module 120 may include a motion sensor to sense the movement of a user.
- the motion sensor may sense the movement of the user facing a display direction of the display 111 .
- the motion sensor may be provided at one area of the upper frame of the display module 110 .
- the sensor module 120 may include a color sensor which senses a color temperature of light (external light) incident thereto from the outside of the display device 10 .
- the color sensor may sense at least one of a color temperature or illuminance with respect to the display direction of the display 111 .
- the color sensor may be provided while facing the display direction of the display 111 .
- the sensor module 120 may output directional information of the external light.
- the sensor module 120 may include the color sensor which outputs information on the difference between the quantities of light applied to a plurality of photo-sensors.
- the color sensor may be configured to output the variation in the quantity of light over time, which is applied to the photo-sensors.
- the color sensor may be provided at one area of the upper frame of the display module 110 .
- the sensor module 120 may include a plurality of illuminance sensors (or a plurality of color sensors) which sense the direction of light by using the sensed illuminance difference.
- the illuminance sensors (or the color sensors) may be provided at a plurality of areas (e.g., top, bottom, left, and right areas) of a frame of the display module 110 .
- the communication module 130 may communicate with a registered external electronic device through a specified communication scheme.
- the communication module 130 may make communication through at least one of Bluetooth or Bluetooth low energy (BLE).
- BLE Bluetooth low energy
- the communication module 130 may make communication through at least one of wireless fidelity (WiFi), Zigbee, or near field communication (NFC).
- WiFi wireless fidelity
- NFC near field communication
- the memory 140 may be a volatile memory (e.g., a random access memory (RAM), or the like), a non-volatile memory (e.g., a read-only memory (ROM), a flash memory, or the like), or the combination thereof.
- the memory 140 may store instructions or data related to at least one different element of the display device 10 .
- the memory 140 may store a still image (or a picture frame image).
- the still image may be an image displayed in a picture frame mode.
- the picture frame mode may be a mode for displaying the still image to utilize the display device 10 as a picture frame.
- the still image may be, for example, a painting, such as a landscape, a portrait, or a still life painting, and may be a photograph (e.g., a family photograph).
- the still image may be expressed (or displayed) on the display 111 such that a user feels as if the still image is a picture drawn on a paper or a photograph printed on paper.
- the still image may be one type of an image or may include a plurality of images.
- the still image may include an image which is changing in at least a portion thereof.
- the memory 140 may store reference data (e.g., a lookup table) for adjusting the still image to correspond to at least one of the brightness or the color temperature of the external light.
- the memory 140 may store instructions for applying various effects to the still image.
- the instructions may include an instruction for applying a shadow effect to the still image corresponding to the direction of the external light.
- the instructions may include instructions for applying a paper effect, a canvas effect, a gloss effect or a matte effect, or the like to the still image.
- the memory 140 may have information for determining the color temperature of the still image based on an average pixel color (APC) ratio of sub-pixels of the still image.
- API average pixel color
- the input module 160 may receive a user input.
- the input module 160 may include at least one of a communication unit or an input button.
- the communication unit may communicate with a remote controller. If the remote controller transmits a control signal corresponding to a button manipulated by a user, the communication unit may receive the control signal from the remote controller and may transform the control signal to the form that is able to be analyzed by the processor 150 . If the communication unit receives an instruction signal to be transmitted to the remote controller from the processor 150 , the communication unit may transform the instruction signal to an instruction signal corresponding to the communication scheme of the remote controller and may transmit the instruction signal to the remote controller.
- the communication unit may communicate with the remote controller through various short range communication schemes such as Bluetooth.
- the input button may be, for example, a button provided in the display device 10 .
- the remote controller and the input button may include respective power buttons.
- the input module 160 may output a first user input (first signal) in response to the short press of the power button and may output a second user interface (second signal) in response to the long press of the power button.
- the processor 150 may include, for example, at least one of a central processing unit (CPU), a graphics processing unit (GPU), a micro-processor, application specific integrated circuits (ASICs), or a field programmable gate array (FPGA), or may have a plurality of cores.
- the processor 150 may perform, for example, computation or data processing related to the control and/or communication of at least one different element of the display device 10 .
- a driving mode of the processor 150 may be switched from a main mode or a picture frame mode to a device off mode.
- the device off mode may be, for example, a mode in which an element, such as the sensor module 120 , the communication module 130 , the memory 140 , the display module 110 , or the like of the display device 10 is turned off. In the device off mode, even the processor 150 may be turned off.
- the driving mode of the processor 150 may be switched from the device off mode to the main mode or the picture frame mode.
- the mode may be switched to the main mode.
- the mode may be switched to the picture frame mode.
- the mode may be switched from the main mode to the picture frame mode or may be switched from the picture frame mode to the main mode.
- the main mode may be a mode in which a moving picture may be output through the display 111 .
- most elements of the display device 10 may be controlled to be turned on.
- the picture frame mode may be a mode for outputting a still image through the display module 110 or for turning off the display module 110 .
- the sensor module 120 and the communication module 130 may be turned on and the display module 110 may be turned on only when the user is sensed.
- the processor 150 may output a moving picture to the display 111 in the main mode (e.g., a TV viewing mode).
- the processor 150 may output a moving picture received from an external interface.
- the external interface may include an optical cable, a terrestrial antenna, high-definition multimedia interface (HDMI), digital video interface (DVI) or the like.
- HDMI high-definition multimedia interface
- DVI digital video interface
- a receiving module (not illustrated) may transform a signal received through the optical cable or the terrestrial antenna to the form that is able to be output to the display ill such that the signal is output to the display 111 .
- the processor 150 may output the moving picture by using the signal received from the receiving module (not illustrated).
- the processor 150 may output a still image (e.g., a famous painting) to the display 111 . If the processor 150 fails to sense the user, the processor 150 may turn off the display 111 . Therefore, according to an embodiment, when a user does not use a main function of the display device such as a TV, as the picture frame function is provided, thereby producing an interior effect by using the display device 10 .
- the processor 150 may control the main mode and the picture frame mode at different frame rates. For example, the processor 150 may update and output a moving picture to the display 111 at a first frame rate (e.g., 60 HZ) in the main mode. For another example, the processor 150 may update and output a still image to the display 111 at a second frame rate ( ⁇ the first frame rate) (e.g., 30 Hz). Therefore, according to an embodiment, when the display device 10 is driven in the picture frame mode rather than the main mode, the power consumption in the display module 110 may be reduced.
- a first frame rate e.g. 60 HZ
- the processor 150 may update and output a still image to the display 111 at a second frame rate ( ⁇ the first frame rate) (e.g., 30 Hz). Therefore, according to an embodiment, when the display device 10 is driven in the picture frame mode rather than the main mode, the power consumption in the display module 110 may be reduced.
- the processor 150 may control the display module 110 in the main mode and the picture frame mode at different scanning rate.
- the processor 150 may control the display module 110 to scan a display panel at a first scanning rate (e.g., 120 Hz) in the main mode and may control the display module 110 to scan the display panel at a second scanning rate ( ⁇ the first scanning rate) (e.g., 60 Hz) in the picture frame mode. Therefore, according to an embodiment, when the display device 10 is driven in the picture frame mode rather than the main mode, the power consumption in the display module 110 may be more reduced.
- the processor 150 may turn on the display module 110 to display a still image or may turn off the display module 110 .
- the processor 150 may turn on a sensor (e.g., the color sensor) which provides sensing information used to adjust the color temperature of the still image in the sensor module 120 .
- the processor 150 may determine whether the signal received from the external electronic device through the communication module 130 has strength less than a threshold strength. For example, the processor 150 may determine the strength of the received signal by using the received signal strength indicator (RSSI) of the signal received through the communication module 130 .
- the threshold strength may be set by considering time in which the user is in the proximity of the display device 10 or time required to control the brightness of the backlight 115 . According to an embodiment, if the signal received from the external electronic device has strength less than the threshold strength, the processor 150 may turn off the display module 110 .
- the processor 150 may control the backlight 115 to have a first brightness (or may perform dimming control) and may display a still image on the display module 110 . Therefore, according to an embodiment, if the proximity possibility of the user is determined, the display device 10 may prepare the still image in advance and thus may rapidly output the still image to the display 111 when the user is in the proximity of the display device 10 .
- the processor 150 may control the backlight 115 to have a second brightness ( ⁇ the first brightness) and may display a still image on the display 111 . If the processor 150 recognizes the movement of the user regardless of the strength of the signal received from the external electronic device, the processor 150 may control the backlight 115 to have the second brightness ( ⁇ the first brightness) and may display the still image. Therefore, according to an embodiment, when the processor 150 performs the picture frame mode, the power consumption may be reduced.
- the processor 150 may determine the color temperature of the external light by using the sensing information of the sensor module 120 , for example, the sensing information of the color sensor.
- the sensed color temperature may be varied due to light (e.g., illumination or natural light) in a space in which the display device 10 is installed.
- the processor 150 may adjust the color temperature of the still image based on the color temperature of the external light and the color temperature of the still image in the picture frame mode.
- the color temperature of the still image may be calculated by using APC of sub-pixels of all pixels included in the still image.
- the processor 150 may calculate APC (a first value) of all R sub-pixels included in the still image, APC (a second value) of all G sub-pixels included in the still image, and APC (a third value) of all B sub-pixels included in the still image. Then, the processor 150 may calculate the color temperature of the still image by using the APC ratio (the first value:the second value:the third value) of each sub pixel.
- the processor 150 may compare the color temperature of the external light with the color temperature of the still image. If the color temperature of the external light is higher than the color temperature of the still image, the processor 150 may increase the color temperature of the still image. If the color temperature of the external light is lower than the color temperature of the still image, the processor 150 may decrease the color temperature of the still image. In this case, the processor 150 may adjust the color temperature of the still image such that the color temperature of the still image is equal to the color temperature of the external light or may adjust the color temperature of the still image to the intermediate value between the color temperature of the external light and the color temperature of the still image.
- the adjustment value (lookup table) of the color temperature of the still image based on the color temperatures of the external light and the still image may be determined through an experiment of comparing between paper printed with a first image and the display module 110 having the first image displayed thereon, in which the paper and the display module 110 are affected by the same external light, while adjusting the color temperature of the still image to be output to the display module 110 such that the color temperature of the first image on the display module 110 approximates the color temperature of the paper printed with the first image. If the external light and the still image have the higher color temperatures, the external light and the still image show blue light. If the external light and the still image have the lower color temperatures, the external light and the still image show red light.
- the processor 150 may adjust the color temperature of the still image to red color (still image) affected by yellow light (external light). For another example, if the external light shows yellow light and if the still image shows blue-based light, the processor 150 may adjust the color temperature of the still image to blue light affected by yellow light (external light).
- the processor 150 may display, on the display 111 , the still image having the color temperature adjusted based on the color temperatures of the external light and the still image. Therefore, according to an embodiment, since the color of the still image is expressed similarly to the color of an image in a real picture frame for paper (hereinafter, referred to as “paper picture flame”) affected by external dimming change Therefore, according to an embodiment, since the color of the still image is expressed similarly to the real picture frame affected by the external dimming change, a user, who has analog sensibility and resistance against the electronic picture frame, may less feel the resistance against the electronic picture frame.
- the processor 150 may adjust the color temperature of the still image through a plurality of steps. First, the processor 150 may adjust the color temperature of the whole pixels of the still image in a batch. For example, in the case that the color temperature of the external light has a higher value, the processor 150 may adjust the color temperature of the whole pixels of the still image at the same ratio to increase the color temperature of the still image. Next, the processor 150 may adjust the color temperature of some pixels of the still image at a first change ratio and may adjust the color temperature of other pixels of the still image at a second change ratio.
- the processor 150 may adjust pixels, which show yellow light, among the whole pixels of the still image at the first change ratio, may adjust pixels, which show blue light, at the second change ratio, and may adjust pixels, which show red light, at a third change ratio.
- the processor 150 may express the still age in a color, which is obtained by combining the color impression of the external light and the color impression of the still image. Therefore, according to an embodiment, the display 111 may be supported such that a user feels as if the display 111 is the paper picture frame affected by the color temperature of the external light.
- the processor 150 may adjust the color temperature of the still image to correspond to the color temperature of the background behind the rear surface of the display module 110 .
- the still image displayed on the display 111 may provide, to a user, a slightly different color impression depending on the color type of the background (e.g., the color of a wall surface).
- the processor 150 may recognize the color temperature of the background and may adjust the color temperature of the still image depending on the color temperature of the background.
- the processor 150 may recognize the color temperature of the background automatically or by determining an input by a user (user input).
- the display device 10 may include a camera, which photographs the background, to recognize the color temperature of the background by using an image captured by the camera.
- the processor 150 may determine the color temperature of the background based on the user input through the control signal received from the remote controller or the input module (not illustrated).
- the processor 150 may determine the illuminance of the external light by using the sensing information (e.g., illuminance) of the color sensor and may output a still image by changing a still image depending on the illuminance of the external light.
- the sensing information e.g., illuminance
- the processor 150 may increase the brightness of the still image. As the illuminance of the external light is gradually decreased (or the external light becomes darker), the processor 150 may decrease the brightness of the still image. According to an embodiment, the processor 150 may adjust the brightness of the still image by adjusting at least one the pixel value of the still image or the brightness of the backlight 115 . For example, in the case that the display module 110 does not include the backlight 115 (e.g., the display module 110 includes an OLED), the processor 150 may adjust only the pixel value of the still image corresponding to the illuminance of the external light.
- the processor 150 may control both the pixel value of the still image and the brightness of the backlight 115 corresponding to the illuminance of the external light.
- the degree that the processor 150 adjusts the pixel value of the still image and the brightness of the backlight 115 corresponding to the illuminance of the external light may be experimentally determined.
- the processor 150 may adjust the contrast of the still image corresponding to the illuminance of the external light. For example, if the illuminance of the external light is less than first threshold illuminance, the processor 150 may reduce the brightness of a darker area of the still image, for example, an area having the brightness less than the first threshold brightness. For another example, if the illuminance of the external light is equal to or more than the first threshold, the processor 150 may increase the brightness of an area having the brightness which is equal to or more than the second threshold brightness. The processor 150 may not additionally adjust the brightness with respect to a pixel having a brightness which is equal to or more than the first threshold brightness and less than the second threshold brightness.
- the processor 150 may adjust the sharpness of the still image corresponding to the illuminance of the external light. For example, if the illuminance of the external light is less than second threshold illuminance, the processor 150 may reduce the sharpness of a darker area of the still image, for example, an area having the brightness less than the third threshold brightness. If the illuminance of the external light is equal to or more than the first threshold illuminance, the processor 150 may increase the sharpness of a brighter area of the still image, for example, an area of the still image having the brightness equal to or more than fourth threshold brightness. The processor 150 may not additionally adjust the sharpness with respect to a pixel having brightness which is equal to or more than the third threshold brightness and less than the fourth threshold brightness.
- the first threshold illuminance and the second threshold illuminance may be equal to each other or different from each other.
- the first threshold brightness and the third threshold brightness may be equal to or different from each other and the second threshold brightness and the fourth threshold brightness may be equal to or different from each other.
- the first threshold illuminance and second threshold illuminance and the first threshold brightness to fourth threshold brightness may be determined by an experiment.
- the processor 150 may adjust the brightness of the still image depending on the brightness of the background of the display module 110 . For example, in the case that the background has a higher brightness, the processor 150 may increase the brightness of the still image. In the case of the background has lower brightness, the processor 150 may decrease the brightness of the still image. Even in this case, the processor 150 may adjust at least one of the pixel value of the still image or the brightness of the backlight 115 . The degree of increasing or decreasing the brightness of the still image corresponding to the brightness of the background by the processor 150 may be experimentally determined.
- the processor 150 may determine the direction of the external light of the display device 10 by using the sensor module 120 .
- the color sensor or the camera sensor
- the processor 150 may output sensing information (e.g., images over time) for determining the temporal change in the quantity of light measured by a plurality of photo-sensors.
- the processor 150 may determine the direction of the external light by using the difference between the quantities of light measured by at least two photo-sensors.
- the display device 10 may determine the direction of the external light by using a plurality of illuminance sensors (or a plurality of color sensors).
- the illuminance sensors may be provided in a plurality of areas (e.g., top, bottom, left, and right areas) of a frame f 110 of the display module 110 and the processor 150 may determine the direction of light based on the display module 110 by using the difference in illuminance between the illuminance sensors.
- the processor 150 may apply the shadow effect to the still image corresponding to the direction of the external light.
- the frame f 110 may be provided at a peripheral portion (edge) of the display module 110 .
- the processor 150 may apply a shadow effect (see reference sign el) to the still image by adjusting the value of a pixel, which is close to the frame f 110 of the display device 10 , among the pixels of the still image displayed on the display 111 to a brighter value or a darker value depending on the direction of the external light. Therefore, according to an embodiment, a shadow may be expressed on the still image corresponding to the direction of the external light.
- the processor 150 may output a still image after applying a paper effect to the still image such that the display 111 may have a paper feel.
- the still image may be shown as if the still image is a paper image. Therefore, according to an embodiment, the display device may be shown as if the display device 10 is more similar to a real picture frame.
- the processor 150 may apply various effects to the still image.
- the processor 150 may apply a canvas effect, a gloss effect, a matte effect, or the like to the still image by adjusting pixel values of the still image. Therefore, according to an embodiment, the display device 10 is shown as if the display device 10 is closer to the real picture frame.
- the processor 150 may store the still image, which is subject to the canvas effect, the gloss effect, the matte effect, or the like, in the memory 140 . Thereafter, the processor 150 may perform the above-described adjustment by using the still image subject to the above effects.
- the illumination (or the color temperature) of the environment, in which the display device 10 is installed may be rarely changed as long as the display device 10 is not moved to be installed in another place. Therefore, the processor 150 may adjust the color temperature of the still image depending on the color temperature of the external light and may store the adjusted still image in the memory 140 . Then, the processor 150 may output the adjusted still image to the display 111 if the color temperature and the illuminance of the external light are not changed. Therefore, according to an embodiment, time taken to apply an effect in the picture frame mode may be reduced.
- the display device 10 including the light emitting device is not greatly affected by the color temperature of the external light (e.g., illumination)
- the display device 10 may overcome the problem of the related art of providing only the feel of an electronic product, which performs a picture frame function, providing the feel of the real picture frame.
- FIG. 3 is a view illustrating controlling the picture frame function, according to an embodiment of the present invention.
- the processor 150 may control the backlight 115 to have the first brightness and thus may operate in the picture frame mode, if detecting the movement of the user by using the motion sensor.
- the processor 150 may detect the movement of a user by using the motion sensor to determine whether the control of the brightness of the backlight 115 or the off control of the display module 110 is necessary.
- the processor 150 may operate in the main mode according to the input of the user while performing the picture frame mode.
- the processor 150 may determine whether a signal received from the external electric device has strength equal to or greater than threshold strength if the processor 150 does not detect the movement of the user. If the processor 150 does not detect the movement of the user and if the processor 150 determines that the signal received from the external electronic device has the strength equal to or greater than the threshold strength, the processor 150 may control the brightness of the backlight 115 to be the second brightness ( ⁇ first brightness). In operation 320 , the processor 150 controls the backlight 115 to have the second brightness while determining whether a signal received from the external electronic device through the communication module 130 has strength less than the threshold strength. In operation 320 , the processor 150 may receive the signal from the external electronic device through the BLE.
- the processor 150 may re-determine whether the signal received from the external electronic device has the strength less than the threshold strength after a specified period elapses.
- the processor 150 may control the display module 110 to be turned off if the signal received from the external electronic device has the strength less than the threshold strength according to the re-determination result.
- the processor 150 may turn off elements other than the display module 110 .
- the processor 150 may periodically operate specified elements (e.g., the communication module) to determine whether the signal received from the external electronic device has strength equal to more than the threshold strength.
- the processor 150 may perform the operation 320 if the signal received from the external electronic device has the strength equal to or more than the threshold strength. If detecting the movement of the user, the processor 150 may perform operation 310 . As described above, according to an embodiment, the processor 150 may determine the proximity of the user or the proximity possibility of the user to selectively perform the picture frame mode. Accordingly the power consumption in the picture frame mode may be reduced.
- the power consumption may be reduced, thereby reducing the cost burden on the user.
- FIG. 4 is a flowchart illustrating adjusting a still image, according to an embodiment of the present invention.
- the processor 150 may determine whether a driving mode is the picture frame mode.
- the processor 150 may switch to the picture frame mode from the main mode of outputting a moving picture or from the device off state, depending on a user input.
- the processor 150 may turn on a sensor (e.g., the color sensor) for providing sensing information used to adjust the still image in the sensor module 120 .
- the processor 150 may determine at least one of a color temperature or the illuminance of the external light through the sensor module 120 in the picture frame mode. For example, the processor 150 may determine at least one of the color temperature or the illuminance of the external light by using the color sensor. The processor 150 may determine the direction of light by analyzing the image received from the color sensor.
- the processor 150 may adjust the still image corresponding to at least one of the determined color temperature or the determined illuminance.
- the processor 150 may adjust the color temperature of the still image to correspond to the color temperature of the external light.
- the processor 150 may adjust at least one of a pixel value of the still image or the backlight 115 , thereby adjusting the brightness of the still image to correspond to the illuminance of the external light.
- the processor 150 may adjust at least one of contrast or sharpness of the still image to correspond to the illuminance of the external light. Since the adjustment of the still image corresponding to the at least one of the determined color temperature or the determined illuminance has been described above, the details thereof will be omitted.
- the processor 150 may apply the shadow effect to the adjusted still image corresponding to the determined direction of light.
- the processor 150 may store the still image, which is adjusted and subject to the effects, in the memory 140 .
- the processor 150 may output the adjusted still image to the display 111 .
- the processor 150 may express the still image while performing operation 410 to 460 until the execution of the picture frame mode is terminated due to the signal from the external electronic device and the detection of the movement of the user.
- the display device 10 may be supported such that the display device 10 is shown as if the display device 10 is a real picture frame.
- the still image may be shown as if the still image is more similar to an image in a real picture frame.
- the display device 10 which allows a user to feel analog sensibility, may be provided.
- the digital device 10 may be used as an interior piece. Accordingly, the utilization of the display device 10 may be increased.
- an display device includes a display; a sensor module configured to sense a color temperature of light incident to the sensor module from an outside of the display device; and a processor electrically connected to the display and the sensor module.
- the processor is configured to operate in a first mode or a second mode or be turned off, depending on a user input; output a moving picture to the display in the first mode; output a still image to the display if detecting a user and turn off the display if failing to detect the user, in the second mode; adjust a color temperature of the still image based on the color temperature sensed by using the sensor module in outputting the still image; and output the still image having the adjusted color temperature to the display.
- the display device further includes a communication module configured to communicate with an external electronic device, wherein the sensor module includes a motion sensor configured to sense movement of the user, and wherein the processor is configured to output the still image to the display by adjusting a backlight of the display to have a first brightness, if sensing the movement of the user by using the motion sensor; determine whether a signal received from the external electronic device has strength equal to or greater than threshold strength if failing to sensing the movement of the user; output the still image to the display by adjusting the backlight of the display to have a second brightness less than the first brightness if the received signal has the strength equal to or greater than the threshold strength; and turn off the display if the received signal has strength less than the threshold strength.
- the sensor module includes a motion sensor configured to sense movement of the user
- the processor is configured to output the still image to the display by adjusting a backlight of the display to have a first brightness, if sensing the movement of the user by using the motion sensor; determine whether a signal received from the external electronic device has strength equal
- the processor is configured to update the moving picture to the display at a first frame rate in the first mode; and update the still image to the display at a second frame rate in the second mode, and wherein the second frame rate is lower than the first frame rate.
- the processor is configured to adjust color temperatures of whole pixels of the still image by using a specified change ratio.
- the processor is configured to adjust color temperatures of some pixels among the whole pixels by using a first change ratio; and adjust color temperatures of other pixels among the whole pixels by using a second change ratio.
- the processor is configured to determine a background behind a rear surface of the display from the user input; and adjust a color temperature of the still image to correspond to the background.
- the processor is configured to adjust a brightness of the still image to correspond to a brightness of the background.
- the processor is configured to reduce at least one of contrast or sharpness of the still image.
- the sensor module is configured to sense illuminance of the light and to adjust a brightness of the still image to correspond to the illuminance of the light.
- the processor is configured to decrease a brightness of an area of the still image, which has less than a first brightness, if the illuminance of the light is less than a first threshold value; and increase a brightness of an area of the still image, which has at least a second brightness, if the illuminance of the light is equal to or greater than the first threshold value.
- the processor is configured to increase sharpness of an area of the still image, which has less than a first brightness, if the illuminance of the light is less than a first threshold value; and decrease sharpness of an area of the still image, which has at least a second brightness, if the illuminance of the light is equal to or greater than the first threshold value.
- the sensor module senses a direction of the light
- the processor is configured to apply a shadow effect to an area of the still image, which corresponds to an edge of the display, in accordance with the direction of the light.
- the sensor module include a color sensor configured to output information on variation in a quantity of the light over time, which is applied to a plurality of photo-sensors, and wherein the processor is configured to determine the direction of the light by using the information on the variation in the quantity of the light over time.
- a display method by a display device includes determining switching to a second mode from a first mode of outputting a moving picture or from a device off state, depending on a user input; sensing a user if determining of switching to the second mode; outputting a still image to a display if sensing the user; and turning off the display if failing to sense the user, wherein the outputting of the still image includes sensing a color temperature of light incident from an outside of the display device; adjusting a color temperature of the still image based on the color temperature of the still image and the sensed color temperature of the light; and outputting the still image having the adjusted color temperature to the display.
- the adjusting of the color temperature of the still image includes adjusting color temperatures of whole pixels of the still image by using a specified change ratio.
- the adjusting of the color temperature of the still image further includes adjusting color temperatures of some pixels among the whole pixels by using a first change ratio; and adjusting color temperatures of other pixels among the whole pixels by using a second change ratio.
- the display method further includes sensing illuminance of the light; and adjusting a brightness of the still image to correspond to the illuminance of the light.
- the display method further includes sensing illuminance of the light; decreasing a brightness of an area of the still image, which has less than a first brightness, if the illuminance of the light is less than a first threshold value; and increasing a brightness of an area of the still image, which has less than a second brightness, if the illuminance of the light is equal to or more than the first threshold value.
- the display method further includes sensing illuminance of the light; increasing sharpness of an area of the still image, which has less than a first brightness, if the illuminance of the light is less than a first threshold value; and decreasing sharpness of an area of the still image, which has at least a second brightness, if the illuminance of the light is equal to or greater than the first threshold value.
- the display method further includes sensing a direction of the light incident from the outside; and applying a shadow effect to an area of the still image, which corresponds to an edge of the display, in accordance with direction of the light.
- module as used in the present disclosure may represent, for example, a unit including one or more combinations of hardware, software and firmware.
- the term “module” may be interchangeably used with the terms “unit”, “logic”, “logical block”, “component” and “circuit”.
- the “module” may be a minimum unit of an integrated component or may be a part thereof.
- the “module” may be a minimum unit for performing one or more functions or a part thereof.
- the “module” may be implemented mechanically or electronically.
- the “module” may include at least one of an application-specific IC (ASIC) chip, a field-programmable gate array (FPGA), and a programmable-logic device for performing some operations, which are known or will be developed.
- ASIC application-specific IC
- FPGA field-programmable gate array
- At least a part of an apparatus (e.g., modules or functions thereof) or a method (e.g., operations) according to an embodiment of the present disclosure may be, for example, implemented by instructions stored in a computer-readable storage media in the form of a program module.
- the instruction when executed by a processor 150 , may cause the one or more processors to perform a function corresponding to the instruction.
- the computer-readable storage media for example, may be the memory 140 .
- a computer-readable recording medium may include a hard disk, a floppy disk, a magnetic media (e.g., a magnetic tape), an optical media (e.g., a compact disc read only memory (CD-ROM) and a digital versatile disc (DVD), a magneto-optical media a floptical disk)), and hardware devices (e.g., a read only memory (ROM), a random access memory (RAM), or a flash memory).
- a program instruction may include not only a mechanical code such as generated by a compiler but also a high-level language code executable on a computer using an interpreter.
- the above hardware unit may be configured to operate via one or more software modules for performing an operation according to an embodiment of the present disclosure, and vice versa.
- a module or a program module according to an embodiment of the present disclosure may include at least one of the above elements, or a part of the above elements may be omitted, or additional other elements may be further included. Operations performed by a module, a program module, or other elements may be executed sequentially, in parallel, repeatedly, or in a heuristic method. In addition, some operations may be executed in different sequences or may be omitted. Alternatively, other operations may be added.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Social Psychology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- General Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Controls And Circuits For Display Device (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
A display device includes a display, a sensor module which senses a color temperature of light incident to the sensor module from an outside of the display device, and a processor electrically connected to the display and the sensor module. The processor operates in a first mode or a second mode or is turned off, depending on a user input, outputs a moving picture to the display in the first mode, outputs a still image to the display if detecting a user, turns off the display if failing to detect the user, in the second mode, adjusts a color temperature of the still image based on the color temperature sensed by using the sensor module in outputting the still image, and outputs the still image having the adjusted color temperature to the display.
Description
This application is a continuation of U.S. patent application Ser. No. 15/852,006 filed on Dec. 22, 2017, which claims foreign priority to Korean patent application 10-2016-0176329 filed on Dec. 22, 2016, the entire disclosure of which is hereby incorporated by reference.
The present disclosure relates to a display device for adjusting a color temperature of an image, capable of providing a picture frame function, and a display method for the same.
A display device, such as a television (TV), provides a specific function (e.g., a function of reproducing of image content) in an ON state. When the specific function is not provided, the display device may be turned off (a device off). A conventional display device may be maintained in a black-screen state if turned off.
The display device may be used as an electronic picture frame for outputting a photograph, a picture, and a work of art on a display. However, since the screen of the electronic picture frame displayed by the conventional display device provides the strong electronic product feel, the conventional display device may provide the resistance to a user having analog sensibility. In addition, since the display device is a light emitting device including a display panel or a backlight, the display device may not greatly affected by a color temperature of light (e.g., illuminance) incident thereto from the outside. Accordingly, the picture frame displayed on the conventional display device cannot help having a difference from a real picture frame in terms of a texture, a color, or the like.
Aspects of the present disclosure are to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present disclosure is to provide a display device for adjusting the color temperature of the image, capable of providing a picture frame function by considering color variation due to light incident thereto from the outside, and a display method for the same.
In accordance with an aspect of the present disclosure, a display device includes a display, a sensor module which senses a color temperature of light incident to the sensor module from an outside of the display device, and a processor electrically connected to the display and the sensor module. The processor operates in a first mode or a second mode or is turned off, depending on a user input, outputs a moving picture to the display in the first mode, outputs a still image to the display if detecting a user, turns off the display if failing to detect the user, in the second mode, adjusts a color temperature of the still image based on the color temperature sensed by using the sensor module in outputting the still image, and outputs the still image having the adjusted color temperature to the display.
In accordance with another aspect of the present disclosure, a display method includes determining switching to a second mode from a first mode of outputting a moving picture or from a device off state, depending on a user, sensing a user if determining of switching to the second mode, outputting a still image to a display if sensing the user, and turning off the display if failing to sense the user. The outputting of the still image on the display includes sensing a color temperature of light incident from an outside of the display device, adjusting a color temperature of the still image based on the color temperature of the still image and the sensed color temperature of the light, and outputting the still image having the adjusted color temperature to the display.
According to the embodiments disclosed in the present disclosure, the screen of the electronic picture frame is adjusted by considering the influence by light incident from the outside such that the electronic picture frame more looks like a real picture frame for paper.
Other aspects, advantages, and salient features of the disclosure will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses various embodiments of the present disclosure.
The above and other aspects, features, and advantages of certain embodiments of the present disclosure will be more apparent from the following description taken in conjunction with the accompanying drawings, in which:
Throughout the drawings, it should be noted that like reference numbers are used to depict the same or similar elements, features, and structures.
Hereinafter, certain embodiments of the present disclosure may be described with reference to accompanying drawings. Accordingly, those of ordinary skill in the art will recognize that modifications, equivalents, and/or alternatives on the various embodiments described herein may be made without departing from the scope and spirit of the present disclosure.
The terms of a singular form may include plural forms unless otherwise specified. In the present disclosure, the expressions “A or B”, “at least one of A and/or B”, “A, B, or C”, or at least one of “A, B and/or C” may include all possible combinations of one or more of the associated listed items. The terms such as “first”, “second”, and the like used herein may refer to various elements regardless of the order and/or priority of the elements and may be used to distinguish an element from another element, not to limit the elements. It will be understood that when an element (e.g., a first element) is referred to as being “(operatively or communicatively) coupled with/to” or “connected to” another element (e.g., a second element), the element may be directly coupled with/to or connected to the another element or an intervening element (e.g., a third element) may be present there between.
In the present disclosure, according to the situation, the expression “adapted to or configured to” used herein may be interchangeably used with, for example, the expression “suitable for”, “having the capacity to”, “changed to”, “made to”, “capable of”, or “designed to” “adapted to”, “made to”, or “capable of”. Under a certain situation, the expression “a device configured to” may mean that the device is “capable of” operating together with another device or other components. For example, a “processor configured to (or adapted to) perform A, B, and C” may mean a dedicated processor (e.g., an embedded processor) for performing a corresponding operation or a generic-purpose processor (e.g., a central processing unit (CPU) or an application processor) which may perform corresponding operations by executing one or more software programs which are stored in a memory device.
Referring to FIG. 1 , according to an embodiment, a display device 10 may include a display module 110, a sensor module 120, a communication module 130, a memory 140, an input module 160, and a processor 150. According to an embodiment, some elements may be omitted or additional elements may be provided. In addition, according to an embodiment, some of the elements may be combined with each other so as to form one entity and the functions of the elements may be performed in the same manner as before the combination.
According to an embodiment, the display device 10 may include at least one of a television (TV), a monitor, a notebook computer, a large format display (LFD), a smartphone, a tablet personal computer (PC), a mobile phone, a video telephone, an e-book reader, a desktop personal computer, a laptop personal computer, a netbook computer, a personal digital assistant (PDA), a portable multimedia player (PMP), an MP3 player, a camera, a wearable device, or an electronic picture frame.
A display 111 may include, for example, a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic LED (OLED) display, or an electronic paper display. In FIG. 1 and the present specification, the case that the display module 110 includes the display 111 and a backlight 115 has been described for the illustrative purpose. For example, the display 111 may display various contents (e.g., a text, an image, a video, an icon and/or a symbol) to a user. The backlight 115 may be omitted when the display 111 is OLED.
According to an embodiment, the sensor module 120 may include a motion sensor to sense the movement of a user. The motion sensor may sense the movement of the user facing a display direction of the display 111. For example, the motion sensor may be provided at one area of the upper frame of the display module 110.
According to an embodiment, the sensor module 120 may include a color sensor which senses a color temperature of light (external light) incident thereto from the outside of the display device 10. The color sensor may sense at least one of a color temperature or illuminance with respect to the display direction of the display 111. To this end, the color sensor may be provided while facing the display direction of the display 111.
According to an embodiment, the sensor module 120 may output directional information of the external light. For example, the sensor module 120 may include the color sensor which outputs information on the difference between the quantities of light applied to a plurality of photo-sensors. In this case, the color sensor may be configured to output the variation in the quantity of light over time, which is applied to the photo-sensors. For example, the color sensor may be provided at one area of the upper frame of the display module 110. For another example, the sensor module 120 may include a plurality of illuminance sensors (or a plurality of color sensors) which sense the direction of light by using the sensed illuminance difference. For example, the illuminance sensors (or the color sensors) may be provided at a plurality of areas (e.g., top, bottom, left, and right areas) of a frame of the display module 110.
According to an embodiment, the communication module 130 may communicate with a registered external electronic device through a specified communication scheme. For example, the communication module 130 may make communication through at least one of Bluetooth or Bluetooth low energy (BLE). For another example, the communication module 130 may make communication through at least one of wireless fidelity (WiFi), Zigbee, or near field communication (NFC).
The memory 140 may be a volatile memory (e.g., a random access memory (RAM), or the like), a non-volatile memory (e.g., a read-only memory (ROM), a flash memory, or the like), or the combination thereof. For example, the memory 140 may store instructions or data related to at least one different element of the display device 10.
According to an embodiment, the memory 140 may store a still image (or a picture frame image). The still image may be an image displayed in a picture frame mode. The picture frame mode may be a mode for displaying the still image to utilize the display device 10 as a picture frame. The still image may be, for example, a painting, such as a landscape, a portrait, or a still life painting, and may be a photograph (e.g., a family photograph). The still image may be expressed (or displayed) on the display 111 such that a user feels as if the still image is a picture drawn on a paper or a photograph printed on paper. The still image may be one type of an image or may include a plurality of images. The still image may include an image which is changing in at least a portion thereof.
According to an embodiment, the memory 140 may store reference data (e.g., a lookup table) for adjusting the still image to correspond to at least one of the brightness or the color temperature of the external light. According to an embodiment, the memory 140 may store instructions for applying various effects to the still image. The instructions may include an instruction for applying a shadow effect to the still image corresponding to the direction of the external light. The instructions may include instructions for applying a paper effect, a canvas effect, a gloss effect or a matte effect, or the like to the still image. According to an embodiment, the memory 140 may have information for determining the color temperature of the still image based on an average pixel color (APC) ratio of sub-pixels of the still image.
According to an embodiment, the input module 160 may receive a user input. For example, the input module 160 may include at least one of a communication unit or an input button. According to an embodiment, the communication unit may communicate with a remote controller. If the remote controller transmits a control signal corresponding to a button manipulated by a user, the communication unit may receive the control signal from the remote controller and may transform the control signal to the form that is able to be analyzed by the processor 150. If the communication unit receives an instruction signal to be transmitted to the remote controller from the processor 150, the communication unit may transform the instruction signal to an instruction signal corresponding to the communication scheme of the remote controller and may transmit the instruction signal to the remote controller. The communication unit may communicate with the remote controller through various short range communication schemes such as Bluetooth. Near Field Communication (NFC), and Infrared (IR) communication schemes. The input button may be, for example, a button provided in the display device 10. According to an embodiment, the remote controller and the input button may include respective power buttons. The input module 160 may output a first user input (first signal) in response to the short press of the power button and may output a second user interface (second signal) in response to the long press of the power button.
For example, the processor 150 may include, for example, at least one of a central processing unit (CPU), a graphics processing unit (GPU), a micro-processor, application specific integrated circuits (ASICs), or a field programmable gate array (FPGA), or may have a plurality of cores. The processor 150 may perform, for example, computation or data processing related to the control and/or communication of at least one different element of the display device 10.
According to an embodiment, if the processor 150 receives the second user input (e.g., the long press of the power button) from the input module 160, a driving mode of the processor 150 may be switched from a main mode or a picture frame mode to a device off mode. The device off mode may be, for example, a mode in which an element, such as the sensor module 120, the communication module 130, the memory 140, the display module 110, or the like of the display device 10 is turned off. In the device off mode, even the processor 150 may be turned off.
According to an embodiment, if the processor 150 receives the second user input (e.g., the long press of the power button) from the input module 160 in the device off mode, the driving mode of the processor 150 may be switched from the device off mode to the main mode or the picture frame mode. For example, in the case that the mode has been switched from the main mode to the device off mode, if the processor 150 receives the second user input, the mode may be switched to the main mode. For another example, in the case that the mode has been switched from the picture frame mode to the device off mode, if the processor 150 receives the second user input, the mode may be switched to the picture frame mode. According to an embodiment, if the processor 150 receives the first user input (e.g., the short press of the power button) from the input module 160, the mode may be switched from the main mode to the picture frame mode or may be switched from the picture frame mode to the main mode. For example, the main mode may be a mode in which a moving picture may be output through the display 111. In the main mode, most elements of the display device 10 may be controlled to be turned on. For example, in the main mode, all of elements except an element (e.g., the motion sensor of the sensor module 120) for user sensing may be turned on. For another example, the picture frame mode may be a mode for outputting a still image through the display module 110 or for turning off the display module 110. In the picture frame mode, the sensor module 120 and the communication module 130 may be turned on and the display module 110 may be turned on only when the user is sensed.
According to an embodiment, the processor 150 may output a moving picture to the display 111 in the main mode (e.g., a TV viewing mode). The processor 150 may output a moving picture received from an external interface. The external interface may include an optical cable, a terrestrial antenna, high-definition multimedia interface (HDMI), digital video interface (DVI) or the like. For example, in the case that the external interface is the optical cable or the terrestrial antenna, a receiving module (not illustrated) may transform a signal received through the optical cable or the terrestrial antenna to the form that is able to be output to the display ill such that the signal is output to the display 111. The processor 150 may output the moving picture by using the signal received from the receiving module (not illustrated).
According to an embodiment, if the processor 150 senses the user by using at least one of the sensor module 120 or the communication module 130 in the picture frame mode, the processor 150 may output a still image (e.g., a famous painting) to the display 111. If the processor 150 fails to sense the user, the processor 150 may turn off the display 111. Therefore, according to an embodiment, when a user does not use a main function of the display device such as a TV, as the picture frame function is provided, thereby producing an interior effect by using the display device 10.
According to an embodiment, the processor 150 may control the main mode and the picture frame mode at different frame rates. For example, the processor 150 may update and output a moving picture to the display 111 at a first frame rate (e.g., 60 HZ) in the main mode. For another example, the processor 150 may update and output a still image to the display 111 at a second frame rate (<the first frame rate) (e.g., 30 Hz). Therefore, according to an embodiment, when the display device 10 is driven in the picture frame mode rather than the main mode, the power consumption in the display module 110 may be reduced.
According to an embodiment, the processor 150 may control the display module 110 in the main mode and the picture frame mode at different scanning rate. For example, the processor 150 may control the display module 110 to scan a display panel at a first scanning rate (e.g., 120 Hz) in the main mode and may control the display module 110 to scan the display panel at a second scanning rate (<the first scanning rate) (e.g., 60 Hz) in the picture frame mode. Therefore, according to an embodiment, when the display device 10 is driven in the picture frame mode rather than the main mode, the power consumption in the display module 110 may be more reduced.
According to an embodiment, depending on the position of the user in the picture frame mode, the processor 150 may turn on the display module 110 to display a still image or may turn off the display module 110. According to an embodiment, when the driving mode is switched to the picture frame mode, the processor 150 may turn on a sensor (e.g., the color sensor) which provides sensing information used to adjust the color temperature of the still image in the sensor module 120.
According to an embodiment, when the processor 150 does not perform the picture frame mode (but be in a display off state), the processor 150 may determine whether the signal received from the external electronic device through the communication module 130 has strength less than a threshold strength. For example, the processor 150 may determine the strength of the received signal by using the received signal strength indicator (RSSI) of the signal received through the communication module 130. The threshold strength may be set by considering time in which the user is in the proximity of the display device 10 or time required to control the brightness of the backlight 115. According to an embodiment, if the signal received from the external electronic device has strength less than the threshold strength, the processor 150 may turn off the display module 110.
According to an embodiment, if the processor 150 fails to sense the movement of the user when the strength of the signal received from the external electronic device is equal to or greater than the threshold strength, the processor 150 may control the backlight 115 to have a first brightness (or may perform dimming control) and may display a still image on the display module 110. Therefore, according to an embodiment, if the proximity possibility of the user is determined, the display device 10 may prepare the still image in advance and thus may rapidly output the still image to the display 111 when the user is in the proximity of the display device 10.
According to another embodiment, if the processor 150 recognizes the movement of the user, the processor 150 may control the backlight 115 to have a second brightness (≥the first brightness) and may display a still image on the display 111. If the processor 150 recognizes the movement of the user regardless of the strength of the signal received from the external electronic device, the processor 150 may control the backlight 115 to have the second brightness (≥the first brightness) and may display the still image. Therefore, according to an embodiment, when the processor 150 performs the picture frame mode, the power consumption may be reduced.
According to an embodiment, the processor 150 may determine the color temperature of the external light by using the sensing information of the sensor module 120, for example, the sensing information of the color sensor. The sensed color temperature may be varied due to light (e.g., illumination or natural light) in a space in which the display device 10 is installed.
According to an embodiment, the processor 150 may adjust the color temperature of the still image based on the color temperature of the external light and the color temperature of the still image in the picture frame mode. The color temperature of the still image may be calculated by using APC of sub-pixels of all pixels included in the still image. For example, the processor 150 may calculate APC (a first value) of all R sub-pixels included in the still image, APC (a second value) of all G sub-pixels included in the still image, and APC (a third value) of all B sub-pixels included in the still image. Then, the processor 150 may calculate the color temperature of the still image by using the APC ratio (the first value:the second value:the third value) of each sub pixel.
In this case, the processor 150 may compare the color temperature of the external light with the color temperature of the still image. If the color temperature of the external light is higher than the color temperature of the still image, the processor 150 may increase the color temperature of the still image. If the color temperature of the external light is lower than the color temperature of the still image, the processor 150 may decrease the color temperature of the still image. In this case, the processor 150 may adjust the color temperature of the still image such that the color temperature of the still image is equal to the color temperature of the external light or may adjust the color temperature of the still image to the intermediate value between the color temperature of the external light and the color temperature of the still image. The adjustment value (lookup table) of the color temperature of the still image based on the color temperatures of the external light and the still image may be determined through an experiment of comparing between paper printed with a first image and the display module 110 having the first image displayed thereon, in which the paper and the display module 110 are affected by the same external light, while adjusting the color temperature of the still image to be output to the display module 110 such that the color temperature of the first image on the display module 110 approximates the color temperature of the paper printed with the first image. If the external light and the still image have the higher color temperatures, the external light and the still image show blue light. If the external light and the still image have the lower color temperatures, the external light and the still image show red light.
For example, if the external light shows yellow light and if the still image shows red-based light, the processor 150 may adjust the color temperature of the still image to red color (still image) affected by yellow light (external light). For another example, if the external light shows yellow light and if the still image shows blue-based light, the processor 150 may adjust the color temperature of the still image to blue light affected by yellow light (external light).
According to an embodiment, the processor 150 may display, on the display 111, the still image having the color temperature adjusted based on the color temperatures of the external light and the still image. Therefore, according to an embodiment, since the color of the still image is expressed similarly to the color of an image in a real picture frame for paper (hereinafter, referred to as “paper picture flame”) affected by external dimming change Therefore, according to an embodiment, since the color of the still image is expressed similarly to the real picture frame affected by the external dimming change, a user, who has analog sensibility and resistance against the electronic picture frame, may less feel the resistance against the electronic picture frame. In addition, according to an embodiment, as both of the color temperatures of the external light and the still image are considered, the still image displayed on the display 111 may be expressed more similarly to an image in the paper picture frame. According to an embodiment, the processor 150 may adjust the color temperature of the still image through a plurality of steps. First, the processor 150 may adjust the color temperature of the whole pixels of the still image in a batch. For example, in the case that the color temperature of the external light has a higher value, the processor 150 may adjust the color temperature of the whole pixels of the still image at the same ratio to increase the color temperature of the still image. Next, the processor 150 may adjust the color temperature of some pixels of the still image at a first change ratio and may adjust the color temperature of other pixels of the still image at a second change ratio. For example, if the illumination of an environment, in which the display device 10 is installed, shows yellow light, the processor 150 may adjust pixels, which show yellow light, among the whole pixels of the still image at the first change ratio, may adjust pixels, which show blue light, at the second change ratio, and may adjust pixels, which show red light, at a third change ratio. According to an embodiment, as the processor 150 adjusts the color temperature of the still image to correspond to the color temperature of the external light, the processor 150 may express the still age in a color, which is obtained by combining the color impression of the external light and the color impression of the still image. Therefore, according to an embodiment, the display 111 may be supported such that a user feels as if the display 111 is the paper picture frame affected by the color temperature of the external light.
According to an embodiment, the processor 150 may adjust the color temperature of the still image to correspond to the color temperature of the background behind the rear surface of the display module 110. The still image displayed on the display 111 may provide, to a user, a slightly different color impression depending on the color type of the background (e.g., the color of a wall surface). To correct the difference of the color impression, the processor 150 may recognize the color temperature of the background and may adjust the color temperature of the still image depending on the color temperature of the background.
According to an embodiment, the processor 150 may recognize the color temperature of the background automatically or by determining an input by a user (user input). In the case of the automatic recognition of the color temperature of the background, according to an embodiment, the display device 10 may include a camera, which photographs the background, to recognize the color temperature of the background by using an image captured by the camera. In the case of the recognition of the color temperature of the background by the user input, the processor 150 may determine the color temperature of the background based on the user input through the control signal received from the remote controller or the input module (not illustrated).
According to an embodiment, the processor 150 may determine the illuminance of the external light by using the sensing information (e.g., illuminance) of the color sensor and may output a still image by changing a still image depending on the illuminance of the external light.
According to an embodiment, as the illuminance of the external light is gradually increased (or the external light becomes brighter), the processor 150 may increase the brightness of the still image. As the illuminance of the external light is gradually decreased (or the external light becomes darker), the processor 150 may decrease the brightness of the still image. According to an embodiment, the processor 150 may adjust the brightness of the still image by adjusting at least one the pixel value of the still image or the brightness of the backlight 115. For example, in the case that the display module 110 does not include the backlight 115 (e.g., the display module 110 includes an OLED), the processor 150 may adjust only the pixel value of the still image corresponding to the illuminance of the external light. In the case that the display module 110 includes the backlight 115 (e.g., the display module 110 includes an LCD), the processor 150 may control both the pixel value of the still image and the brightness of the backlight 115 corresponding to the illuminance of the external light. The degree that the processor 150 adjusts the pixel value of the still image and the brightness of the backlight 115 corresponding to the illuminance of the external light may be experimentally determined.
According to another embodiment, the processor 150 may adjust the contrast of the still image corresponding to the illuminance of the external light. For example, if the illuminance of the external light is less than first threshold illuminance, the processor 150 may reduce the brightness of a darker area of the still image, for example, an area having the brightness less than the first threshold brightness. For another example, if the illuminance of the external light is equal to or more than the first threshold, the processor 150 may increase the brightness of an area having the brightness which is equal to or more than the second threshold brightness. The processor 150 may not additionally adjust the brightness with respect to a pixel having a brightness which is equal to or more than the first threshold brightness and less than the second threshold brightness.
According to another embodiment, the processor 150 may adjust the sharpness of the still image corresponding to the illuminance of the external light. For example, if the illuminance of the external light is less than second threshold illuminance, the processor 150 may reduce the sharpness of a darker area of the still image, for example, an area having the brightness less than the third threshold brightness. If the illuminance of the external light is equal to or more than the first threshold illuminance, the processor 150 may increase the sharpness of a brighter area of the still image, for example, an area of the still image having the brightness equal to or more than fourth threshold brightness. The processor 150 may not additionally adjust the sharpness with respect to a pixel having brightness which is equal to or more than the third threshold brightness and less than the fourth threshold brightness. The first threshold illuminance and the second threshold illuminance may be equal to each other or different from each other. Similarly, the first threshold brightness and the third threshold brightness may be equal to or different from each other and the second threshold brightness and the fourth threshold brightness may be equal to or different from each other. The first threshold illuminance and second threshold illuminance and the first threshold brightness to fourth threshold brightness may be determined by an experiment.
According to an embodiment, the processor 150 may adjust the brightness of the still image depending on the brightness of the background of the display module 110. For example, in the case that the background has a higher brightness, the processor 150 may increase the brightness of the still image. In the case of the background has lower brightness, the processor 150 may decrease the brightness of the still image. Even in this case, the processor 150 may adjust at least one of the pixel value of the still image or the brightness of the backlight 115. The degree of increasing or decreasing the brightness of the still image corresponding to the brightness of the background by the processor 150 may be experimentally determined.
According to an embodiment, the processor 150 may determine the direction of the external light of the display device 10 by using the sensor module 120. For example, the color sensor (or the camera sensor) may output sensing information (e.g., images over time) for determining the temporal change in the quantity of light measured by a plurality of photo-sensors. Then, the processor 150 may determine the direction of the external light by using the difference between the quantities of light measured by at least two photo-sensors. For another example, the display device 10 may determine the direction of the external light by using a plurality of illuminance sensors (or a plurality of color sensors). For example, the illuminance sensors may be provided in a plurality of areas (e.g., top, bottom, left, and right areas) of a frame f110 of the display module 110 and the processor 150 may determine the direction of light based on the display module 110 by using the difference in illuminance between the illuminance sensors.
According to an embodiment, the processor 150 may apply the shadow effect to the still image corresponding to the direction of the external light. For example, the frame f110 may be provided at a peripheral portion (edge) of the display module 110. Referring to FIG. 2 , the processor 150 may apply a shadow effect (see reference sign el) to the still image by adjusting the value of a pixel, which is close to the frame f110 of the display device 10, among the pixels of the still image displayed on the display 111 to a brighter value or a darker value depending on the direction of the external light. Therefore, according to an embodiment, a shadow may be expressed on the still image corresponding to the direction of the external light.
According to an embodiment, the processor 150 may output a still image after applying a paper effect to the still image such that the display 111 may have a paper feel. For example, as the processor 150 relatively reduces the sharpness and the contrast of the still image, the still image may be shown as if the still image is a paper image. Therefore, according to an embodiment, the display device may be shown as if the display device 10 is more similar to a real picture frame.
According to an embodiment, the processor 150 may apply various effects to the still image. For example, the processor 150 may apply a canvas effect, a gloss effect, a matte effect, or the like to the still image by adjusting pixel values of the still image. Therefore, according to an embodiment, the display device 10 is shown as if the display device 10 is closer to the real picture frame.
According to an embodiment, the processor 150 may store the still image, which is subject to the canvas effect, the gloss effect, the matte effect, or the like, in the memory 140. Thereafter, the processor 150 may perform the above-described adjustment by using the still image subject to the above effects. According to an embodiment, the illumination (or the color temperature) of the environment, in which the display device 10 is installed, may be rarely changed as long as the display device 10 is not moved to be installed in another place. Therefore, the processor 150 may adjust the color temperature of the still image depending on the color temperature of the external light and may store the adjusted still image in the memory 140. Then, the processor 150 may output the adjusted still image to the display 111 if the color temperature and the illuminance of the external light are not changed. Therefore, according to an embodiment, time taken to apply an effect in the picture frame mode may be reduced.
According to an embodiment, since the display device 10 including the light emitting device is not greatly affected by the color temperature of the external light (e.g., illumination), the display device 10 may overcome the problem of the related art of providing only the feel of an electronic product, which performs a picture frame function, providing the feel of the real picture frame.
As described above, according to an embodiment, the case that the processor 150 adjusts the color temperature of the still image in the picture frame mode has been described for the illustrative purpose. In contrast, the processor 150 may adjust the color temperature of a moving picture in the main mode. FIG. 3 is a view illustrating controlling the picture frame function, according to an embodiment of the present invention.
Referring to FIG. 3 , in operation 310, the processor 150 may control the backlight 115 to have the first brightness and thus may operate in the picture frame mode, if detecting the movement of the user by using the motion sensor. In operation 310, the processor 150 may detect the movement of a user by using the motion sensor to determine whether the control of the brightness of the backlight 115 or the off control of the display module 110 is necessary. In operation 310, the processor 150 may operate in the main mode according to the input of the user while performing the picture frame mode.
In operation 320, the processor 150 may determine whether a signal received from the external electric device has strength equal to or greater than threshold strength if the processor 150 does not detect the movement of the user. If the processor 150 does not detect the movement of the user and if the processor 150 determines that the signal received from the external electronic device has the strength equal to or greater than the threshold strength, the processor 150 may control the brightness of the backlight 115 to be the second brightness (≤first brightness). In operation 320, the processor 150 controls the backlight 115 to have the second brightness while determining whether a signal received from the external electronic device through the communication module 130 has strength less than the threshold strength. In operation 320, the processor 150 may receive the signal from the external electronic device through the BLE.
In operation 330, if the signal from the external electronic device has the strength less than the threshold strength, the processor 150 may re-determine whether the signal received from the external electronic device has the strength less than the threshold strength after a specified period elapses. The processor 150 may control the display module 110 to be turned off if the signal received from the external electronic device has the strength less than the threshold strength according to the re-determination result. In operation 330, the processor 150 may turn off elements other than the display module 110. For example, the processor 150 may periodically operate specified elements (e.g., the communication module) to determine whether the signal received from the external electronic device has strength equal to more than the threshold strength. As described above, the processor 150 may perform the operation 320 if the signal received from the external electronic device has the strength equal to or more than the threshold strength. If detecting the movement of the user, the processor 150 may perform operation 310. As described above, according to an embodiment, the processor 150 may determine the proximity of the user or the proximity possibility of the user to selectively perform the picture frame mode. Accordingly the power consumption in the picture frame mode may be reduced.
According to an embodiment, when the picture frame function is performed by the display device, the power consumption may be reduced, thereby reducing the cost burden on the user.
Referring to FIG. 4 , in operation 410, the processor 150 may determine whether a driving mode is the picture frame mode. The processor 150 may switch to the picture frame mode from the main mode of outputting a moving picture or from the device off state, depending on a user input. According to an embodiment, when the processor 150 switches from the device off state to the picture frame mode, the processor 150 may turn on a sensor (e.g., the color sensor) for providing sensing information used to adjust the still image in the sensor module 120.
In operation 420, the processor 150 may determine at least one of a color temperature or the illuminance of the external light through the sensor module 120 in the picture frame mode. For example, the processor 150 may determine at least one of the color temperature or the illuminance of the external light by using the color sensor. The processor 150 may determine the direction of light by analyzing the image received from the color sensor.
In operation 440, the processor 150 may adjust the still image corresponding to at least one of the determined color temperature or the determined illuminance. For example, the processor 150 may adjust the color temperature of the still image to correspond to the color temperature of the external light. For another example, the processor 150 may adjust at least one of a pixel value of the still image or the backlight 115, thereby adjusting the brightness of the still image to correspond to the illuminance of the external light. For another example, the processor 150 may adjust at least one of contrast or sharpness of the still image to correspond to the illuminance of the external light. Since the adjustment of the still image corresponding to the at least one of the determined color temperature or the determined illuminance has been described above, the details thereof will be omitted. In operation 440, when the shadow effect is set, the processor 150 may apply the shadow effect to the adjusted still image corresponding to the determined direction of light. In operation 440, the processor 150 may store the still image, which is adjusted and subject to the effects, in the memory 140.
In operation 460, the processor 150 may output the adjusted still image to the display 111. The processor 150 may express the still image while performing operation 410 to 460 until the execution of the picture frame mode is terminated due to the signal from the external electronic device and the detection of the movement of the user.
According to an embodiment, as the color impression of the still image expressed in the picture frame mode is adjusted corresponding to the color temperature and the illuminance of the external light, the display device 10 may be supported such that the display device 10 is shown as if the display device 10 is a real picture frame.
According to an embodiment, as a shadow is expressed on the front frame of the display corresponding to the direction of the external light, the still image may be shown as if the still image is more similar to an image in a real picture frame.
According to an embodiment, the display device 10, which allows a user to feel analog sensibility, may be provided. In addition, even if the user does not use the main function of the display device 10, the digital device 10 may be used as an interior piece. Accordingly, the utilization of the display device 10 may be increased.
While the present disclosure has been shown and described with reference to various embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents.
According to embodiment, an display device includes a display; a sensor module configured to sense a color temperature of light incident to the sensor module from an outside of the display device; and a processor electrically connected to the display and the sensor module. Wherein the processor is configured to operate in a first mode or a second mode or be turned off, depending on a user input; output a moving picture to the display in the first mode; output a still image to the display if detecting a user and turn off the display if failing to detect the user, in the second mode; adjust a color temperature of the still image based on the color temperature sensed by using the sensor module in outputting the still image; and output the still image having the adjusted color temperature to the display.
According to embodiment, the display device further includes a communication module configured to communicate with an external electronic device, wherein the sensor module includes a motion sensor configured to sense movement of the user, and wherein the processor is configured to output the still image to the display by adjusting a backlight of the display to have a first brightness, if sensing the movement of the user by using the motion sensor; determine whether a signal received from the external electronic device has strength equal to or greater than threshold strength if failing to sensing the movement of the user; output the still image to the display by adjusting the backlight of the display to have a second brightness less than the first brightness if the received signal has the strength equal to or greater than the threshold strength; and turn off the display if the received signal has strength less than the threshold strength.
The processor is configured to update the moving picture to the display at a first frame rate in the first mode; and update the still image to the display at a second frame rate in the second mode, and wherein the second frame rate is lower than the first frame rate.
The processor is configured to adjust color temperatures of whole pixels of the still image by using a specified change ratio.
The processor is configured to adjust color temperatures of some pixels among the whole pixels by using a first change ratio; and adjust color temperatures of other pixels among the whole pixels by using a second change ratio.
The processor is configured to determine a background behind a rear surface of the display from the user input; and adjust a color temperature of the still image to correspond to the background.
The processor is configured to adjust a brightness of the still image to correspond to a brightness of the background.
The processor is configured to reduce at least one of contrast or sharpness of the still image.
The sensor module is configured to sense illuminance of the light and to adjust a brightness of the still image to correspond to the illuminance of the light.
The processor is configured to decrease a brightness of an area of the still image, which has less than a first brightness, if the illuminance of the light is less than a first threshold value; and increase a brightness of an area of the still image, which has at least a second brightness, if the illuminance of the light is equal to or greater than the first threshold value.
The processor is configured to increase sharpness of an area of the still image, which has less than a first brightness, if the illuminance of the light is less than a first threshold value; and decrease sharpness of an area of the still image, which has at least a second brightness, if the illuminance of the light is equal to or greater than the first threshold value.
The sensor module senses a direction of the light, and wherein the processor is configured to apply a shadow effect to an area of the still image, which corresponds to an edge of the display, in accordance with the direction of the light.
The sensor module include a color sensor configured to output information on variation in a quantity of the light over time, which is applied to a plurality of photo-sensors, and wherein the processor is configured to determine the direction of the light by using the information on the variation in the quantity of the light over time.
According to an embodiment, a display method by a display device, the display method includes determining switching to a second mode from a first mode of outputting a moving picture or from a device off state, depending on a user input; sensing a user if determining of switching to the second mode; outputting a still image to a display if sensing the user; and turning off the display if failing to sense the user, wherein the outputting of the still image includes sensing a color temperature of light incident from an outside of the display device; adjusting a color temperature of the still image based on the color temperature of the still image and the sensed color temperature of the light; and outputting the still image having the adjusted color temperature to the display.
The adjusting of the color temperature of the still image includes adjusting color temperatures of whole pixels of the still image by using a specified change ratio.
The adjusting of the color temperature of the still image further includes adjusting color temperatures of some pixels among the whole pixels by using a first change ratio; and adjusting color temperatures of other pixels among the whole pixels by using a second change ratio.
According to an embodiment, the display method further includes sensing illuminance of the light; and adjusting a brightness of the still image to correspond to the illuminance of the light.
According to an embodiment, the display method, further includes sensing illuminance of the light; decreasing a brightness of an area of the still image, which has less than a first brightness, if the illuminance of the light is less than a first threshold value; and increasing a brightness of an area of the still image, which has less than a second brightness, if the illuminance of the light is equal to or more than the first threshold value.
According to an embodiment, the display method further includes sensing illuminance of the light; increasing sharpness of an area of the still image, which has less than a first brightness, if the illuminance of the light is less than a first threshold value; and decreasing sharpness of an area of the still image, which has at least a second brightness, if the illuminance of the light is equal to or greater than the first threshold value.
According to an embodiment, the display method further includes sensing a direction of the light incident from the outside; and applying a shadow effect to an area of the still image, which corresponds to an edge of the display, in accordance with direction of the light.
The term “module” as used in the present disclosure may represent, for example, a unit including one or more combinations of hardware, software and firmware. The term “module” may be interchangeably used with the terms “unit”, “logic”, “logical block”, “component” and “circuit”. The “module” may be a minimum unit of an integrated component or may be a part thereof. The “module” may be a minimum unit for performing one or more functions or a part thereof. The “module” may be implemented mechanically or electronically. For example, the “module” may include at least one of an application-specific IC (ASIC) chip, a field-programmable gate array (FPGA), and a programmable-logic device for performing some operations, which are known or will be developed.
At least a part of an apparatus (e.g., modules or functions thereof) or a method (e.g., operations) according to an embodiment of the present disclosure may be, for example, implemented by instructions stored in a computer-readable storage media in the form of a program module. The instruction, when executed by a processor 150, may cause the one or more processors to perform a function corresponding to the instruction. The computer-readable storage media, for example, may be the memory 140.
A computer-readable recording medium may include a hard disk, a floppy disk, a magnetic media (e.g., a magnetic tape), an optical media (e.g., a compact disc read only memory (CD-ROM) and a digital versatile disc (DVD), a magneto-optical media a floptical disk)), and hardware devices (e.g., a read only memory (ROM), a random access memory (RAM), or a flash memory). Also, a program instruction may include not only a mechanical code such as generated by a compiler but also a high-level language code executable on a computer using an interpreter. The above hardware unit may be configured to operate via one or more software modules for performing an operation according to an embodiment of the present disclosure, and vice versa.
A module or a program module according to an embodiment of the present disclosure may include at least one of the above elements, or a part of the above elements may be omitted, or additional other elements may be further included. Operations performed by a module, a program module, or other elements may be executed sequentially, in parallel, repeatedly, or in a heuristic method. In addition, some operations may be executed in different sequences or may be omitted. Alternatively, other operations may be added.
While the present disclosure has been shown and described with reference to various embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents.
Claims (20)
1. An electronic device comprising:
a display;
at least one sensor configured to sense a direction of light incident to the at least one sensor from an outside of the electronic device and to sense illumination of the light; and
a processor electrically connected to the display and the at least one sensor,
wherein the processor is configured to:
operate in one of a first mode and a second mode depending on a user input,
output a first image to the display in the first mode and a second image to the display in the second mode, and
when a user is detected in the second mode,
apply a shadow effect to an area of the second image corresponding to an edge of the display based on the direction of the light sensed by the at least one sensor, and
reduce one or both of a contrast and a sharpness of the second image based on the illumination of the light sensed by the at least one sensor.
2. The electronic device of claim 1 , further comprising:
a communication circuit configured to communicate with an external electronic device,
wherein the at least one sensor includes a motion sensor configured to sense movement of the user, and
wherein the processor is configured to:
output the second image to the display by adjusting a backlight of the display to have a first brightness, when the movement of the user is sensed by using the motion sensor,
determine whether a signal received from the external electronic device has a strength equal to or greater than a threshold strength when the movement of the user is not sensed by using the motion detector,
output the second image to the display by adjusting the backlight of the display to have a second brightness less than the first brightness when it is determined the signal received from the external electronic device has the strength equal to or greater than the threshold strength, and
turn off the display when it is determined the signal received from the external electronic device has a strength less than the threshold strength.
3. The electronic device of claim 1 , wherein the processor is configured to:
update the first image output to the display at a first frame rate in the first mode, and
update the second image output to the display at a second frame rate in the second mode, and
wherein the second frame rate is lower than the first frame rate.
4. The electronic device of claim 1 , wherein the processor is configured to:
adjust a brightness of the second image to correspond to a brightness of a background behind the electronic device.
5. The electronic device of claim 1 ,
wherein the processor is configured to adjust a brightness of the second image to correspond to the illuminance of the light sensed by the at least one sensor.
6. The electronic device of claim 5 , wherein the processor is configured to:
decrease a brightness of a first area of the second image, the first area having less than a first brightness, when the illuminance of the light sensed by the at least one sensor is less than a first threshold value, and
increase a brightness of a second area of the second image, the second area having at least a second brightness, when the illuminance of the light sensed by the at least one sensor is equal to or greater than the first threshold value.
7. The electronic device of claim 5 , wherein the processor is configured to:
increase sharpness of a first area of the second image, the first area having less than a first brightness, when the illuminance of the light sensed by the at least one sensor is less than a first threshold value, and
decrease sharpness of a second area of the second image, the second area having at least a second brightness, when the illuminance of the light sensed by the at least one sensor is equal to or greater than the first threshold value.
8. The electronic device of claim 1 ,
wherein the at least one sensor includes a color sensor configured to output information on variation in a quantity of the light applied to a plurality of photo sensors over time, and
wherein the processor is configured to determine the direction of the light by using the information on the variation in the quantity of the light output by the color sensor over time.
9. The electronic device of claim 1 ,
wherein the at least one sensor configured to sense a color temperature of the light, and
wherein the processor is configured to:
compare a color temperature of the second image to the color temperature of the light sensed by the at least one sensor,
adjust the color temperature of the second image based on the comparison, and
output the second image having adjusted color temperature to the display.
10. A display method by an electronic device, the display method comprising:
determining that a mode of the electronic device has been switched to a second mode from either a first mode of outputting a first image to a display of the electronic device or a device off state, depending on a user input;
when it is determined that the mode has been switched to the second mode, outputting a second image to the display; and
when a user is detected in the second mode, sensing a direction of light incident to at least one sensor of the electronic device from an outside of the electronic device through the at least one sensor, sensing illumination of the light through the at least one sensor, applying a shadow effect to an area of the second image corresponding to an edge of the display based on the direction of the light sensed through the at least one sensor, and reducing one or both of a contrast and a sharpness of the second image based on the illumination of the light sensed through the at least one sensor.
11. The display method of claim 10 , further comprising:
sensing movement of the user through the at least one sensor;
outputting the second image to the display by adjusting a backlight of the display to have a first brightness, when the movement of the user is sensed by using the motion sensor;
determining whether a signal received from the external electronic device has a strength equal to or greater than a threshold strength when the movement of the user is not sensed;
outputting the second image to the display by adjusting the backlight of the display to have a second brightness less than the first brightness when it is determined the signal received from the external electronic device has the strength equal to or greater than the threshold strength; and
turning off the display when it is determined the signal received from the external electronic device has a strength less than the threshold strength.
12. The display method of claim 10 , further comprising:
updating the first image output to the display at a first frame rate in the first mode; and
updating the second image output to the display at a second frame rate in the second mode, and
wherein the second frame rate is lower than the first frame rate.
13. The display method of claim 10 , further comprising:
adjusting a brightness of the second image to correspond to a brightness of a background behind the electronic device.
14. The display method of claim 10 , further comprising:
reducing both of a contrast and a sharpness of the second image based on the illumination of the light sensed through the at least one sensor.
15. The display method of claim 10 , further comprising:
adjusting a brightness of the second image to correspond to the illuminance of the light sensed through the at least one sensor.
16. The display method of claim 10 , further comprising:
decreasing a brightness of a first area of the second image, the first area having less than a first brightness, when the illuminance of the light sensed through the at least one sensor is less than a first threshold value; and
increasing a brightness of a second area of the second image, the second area having less than a second brightness, when the illuminance of the light sensed through the at least one sensor is equal to or more than the first threshold value.
17. The display method of claim 10 , further comprising:
increasing sharpness of a first area of the second image, the first area having less than a first brightness, when the illuminance of the light sensed through the at least one sensor is less than a first threshold value; and
decreasing sharpness of a second area of second image, the second area having at least a second brightness, when the illuminance of the light sensed through the at least one sensor is equal to or greater than the first threshold value.
18. The display method of claim 10 , further comprising:
identifying information on variation in a quantity of the light applied to a plurality of photo sensors over time through the at least one sensor; and
determining the direction of the light by using the information on the variation in the quantity of the light sensed through the at least one sensor over time.
19. The display method of claim 10 , further comprising:
sensing a color temperature of the light through the at least one sensor;
comparing a color temperature of the second image to the color temperature of the light sensed through the at least one sensor;
adjusting the color temperature of the second image based on the comparison; and
outputting the second image having adjusted color temperature to the display.
20. An electronic device comprising:
a display;
at least one sensor configured to sense a direction of light incident to the at least one sensor from an outside of the electronic device and to sense illumination of the light; and
a processor configured to
display a still image on the display, and
when a user of the electronic device is detected while the still image is displayed on the display, apply a shadow effect to an area of the still image corresponding to an edge of the display based on the direction of the light sensed by the at least one sensor, and reduce one or both of a contrast and a sharpness of the still image based on the illumination of the light sensed by the at least one sensor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/698,669 US10930246B2 (en) | 2016-12-22 | 2019-11-27 | Display device for adjusting color temperature of image and display method for the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160176329A KR20180072983A (en) | 2016-12-22 | 2016-12-22 | Apparatus and method for Display |
KR10-2016-0176329 | 2016-12-22 | ||
US15/852,006 US10529301B2 (en) | 2016-12-22 | 2017-12-22 | Display device for adjusting color temperature of image and display method for the same |
US16/698,669 US10930246B2 (en) | 2016-12-22 | 2019-11-27 | Display device for adjusting color temperature of image and display method for the same |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/852,006 Continuation US10529301B2 (en) | 2016-12-22 | 2017-12-22 | Display device for adjusting color temperature of image and display method for the same |
Publications (2)
Publication Number | Publication Date |
---|---|
US20200098337A1 US20200098337A1 (en) | 2020-03-26 |
US10930246B2 true US10930246B2 (en) | 2021-02-23 |
Family
ID=62627502
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/852,006 Active 2037-12-29 US10529301B2 (en) | 2016-12-22 | 2017-12-22 | Display device for adjusting color temperature of image and display method for the same |
US16/698,669 Active US10930246B2 (en) | 2016-12-22 | 2019-11-27 | Display device for adjusting color temperature of image and display method for the same |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/852,006 Active 2037-12-29 US10529301B2 (en) | 2016-12-22 | 2017-12-22 | Display device for adjusting color temperature of image and display method for the same |
Country Status (3)
Country | Link |
---|---|
US (2) | US10529301B2 (en) |
KR (1) | KR20180072983A (en) |
WO (1) | WO2018117754A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11250169B2 (en) * | 2019-05-02 | 2022-02-15 | Bank Of America Corporation | System for real-time authenticated obfuscation of electronic data |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6787243B2 (en) * | 2017-04-28 | 2020-11-18 | トヨタ自動車株式会社 | Image transmission program, image transmission method, on-board unit, vehicle, and image processing system |
CN111316347B (en) | 2017-11-09 | 2022-08-23 | 株式会社半导体能源研究所 | Display device, method of operating the same, and electronic apparatus |
KR102577467B1 (en) * | 2018-11-02 | 2023-09-12 | 엘지디스플레이 주식회사 | Display device and method for controlling luminance |
JP7204456B2 (en) * | 2018-12-04 | 2023-01-16 | キヤノン株式会社 | Strobe device and its control method and program |
US11244654B2 (en) * | 2020-06-19 | 2022-02-08 | Intel Corporation | Display control apparatus and method for a display based on information indicating presence or engagement of the user of the display |
US11276371B2 (en) * | 2020-08-04 | 2022-03-15 | Dell Products, L.P. | Systems and methods for identifying and correcting illumination sources reflecting on displays |
TWI792817B (en) | 2021-12-29 | 2023-02-11 | 技嘉科技股份有限公司 | Display apparatus and dimming-calibration method thereof |
CN117198176A (en) * | 2023-09-08 | 2023-12-08 | 深圳市圆周检测技术有限公司 | Display color temperature detection method, system and readable storage medium |
Citations (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1083146A (en) | 1996-09-05 | 1998-03-31 | Seiko Epson Corp | Electronic photograph stand |
US6339429B1 (en) | 1999-06-04 | 2002-01-15 | Mzmz Technology Innovations Llc | Dynamic art form display apparatus |
US20050087671A1 (en) | 2003-10-28 | 2005-04-28 | Samsung Electronics Co., Ltd. | Display and control method thereof |
US20070040033A1 (en) | 2005-11-18 | 2007-02-22 | Outland Research | Digital mirror system with advanced imaging features and hands-free control |
US20070070258A1 (en) | 2005-06-29 | 2007-03-29 | Toshiba Matsushita Display Technology Co., Ltd. | Techniques to switch between video display modes |
US20080297589A1 (en) | 2007-05-31 | 2008-12-04 | Kurtz Andrew F | Eye gazing imaging for video communications |
US20090122206A1 (en) | 2007-11-08 | 2009-05-14 | Samsung Electronics Co., Ltd. | Remote controller for setting mode according to state of broadcast receiving apparatus |
US20090237423A1 (en) | 2008-03-20 | 2009-09-24 | Capella Microsystems, Corp. | Display apparatus of adjusting gamma and brightness based on ambient light and its display adjustment method |
US20090295787A1 (en) | 2008-06-02 | 2009-12-03 | Amlogic, Inc. | Methods for Displaying Objects of Interest on a Digital Display Device |
US20100026816A1 (en) | 2008-07-30 | 2010-02-04 | Jonathan Bergstrom | Wireless data capture and sharing system, such as image capture and sharing of digital camera images via a wireless cellular network |
US20100064332A1 (en) | 2008-09-08 | 2010-03-11 | Sling Media Inc. | Systems and methods for presenting media content obtained from multiple sources |
US20110007141A1 (en) | 2009-07-09 | 2011-01-13 | Sony Corporation | System and method for displaying content on a television in standby mode |
US20110050477A1 (en) | 2009-09-03 | 2011-03-03 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
KR20110050217A (en) | 2009-11-06 | 2011-05-13 | 엘지전자 주식회사 | Display device and method for providing user interface thereof |
US8081197B1 (en) | 2008-12-03 | 2011-12-20 | Adobe Systems Incorporated | System and method for angular image selection |
US20130016102A1 (en) * | 2011-07-12 | 2013-01-17 | Amazon Technologies, Inc. | Simulating three-dimensional features |
US20130125436A1 (en) | 2010-08-05 | 2013-05-23 | Brendan Morris Vallar | Image Display Apparatus |
US20130246954A1 (en) * | 2012-03-13 | 2013-09-19 | Amazon Technologies, Inc. | Approaches for highlighting active interface elements |
US20130318458A1 (en) * | 2011-11-21 | 2013-11-28 | Kenton M. Lyons | Modifying Chrome Based on Ambient Conditions |
US20140168463A1 (en) | 2012-12-14 | 2014-06-19 | Ryohsuke TAMURA | Image-processing device and imaging apparatus |
US8892284B2 (en) | 2012-07-12 | 2014-11-18 | GM Global Technology Operations LLC | Method and apparatus to determine extrema for controlling a multi-mode powertrain system |
US20140351728A1 (en) * | 2013-05-27 | 2014-11-27 | Samsung Electronics Co., Ltd. | Method and apparatus for controlling screen display using environmental information |
US20150058793A1 (en) * | 2013-08-21 | 2015-02-26 | Samsung Electronics Co., Ltd. | Method, apparatus and recording medium for a scrolling screen |
US20150135131A1 (en) * | 2013-11-13 | 2015-05-14 | Red Hat, Inc. | Temporally adjusted application window drop shadows |
US20150332622A1 (en) | 2014-05-13 | 2015-11-19 | Google Inc. | Automatic Theme and Color Matching of Images on an Ambient Screen to the Surrounding Environment |
KR20150146375A (en) | 2014-06-19 | 2015-12-31 | 엘지전자 주식회사 | Device for displaying image of digital photo frame, a mobile terminal for controlling the device, method for controlling of the device |
US20160035285A1 (en) | 2014-08-01 | 2016-02-04 | Samsung Electronics Co., Ltd. | Method and apparatus for controlling brightness of an image display |
US20160103477A1 (en) | 2014-10-14 | 2016-04-14 | Samsung Electronics Co., Ltd. | Display apparatus and controlling method thereof |
US20160198118A1 (en) | 2015-01-06 | 2016-07-07 | Samsung Electronics Co., Ltd. | Display apparatus and display method for displaying image |
US20160205337A1 (en) | 2015-01-09 | 2016-07-14 | Samsung Electronics Co., Ltd. | Display apparatus and display method |
KR20160094596A (en) | 2015-01-31 | 2016-08-10 | 조용승 | A system and a method for a digital frame using beacon technology |
US9449427B1 (en) * | 2011-05-13 | 2016-09-20 | Amazon Technologies, Inc. | Intensity modeling for rendering realistic images |
US20170196066A1 (en) | 2016-01-06 | 2017-07-06 | Boe Technology Group Co., Ltd. | Backlight, Control Method Thereof and Display Device |
US20170316757A1 (en) * | 2016-04-29 | 2017-11-02 | Samsung Electronics Co., Ltd. | Display apparatus and controlling method thereof |
US10592064B2 (en) * | 2013-09-17 | 2020-03-17 | Amazon Technologies, Inc. | Approaches for three-dimensional object display used in content navigation |
-
2016
- 2016-12-22 KR KR1020160176329A patent/KR20180072983A/en active Search and Examination
-
2017
- 2017-12-22 US US15/852,006 patent/US10529301B2/en active Active
- 2017-12-22 WO PCT/KR2017/015393 patent/WO2018117754A1/en active Application Filing
-
2019
- 2019-11-27 US US16/698,669 patent/US10930246B2/en active Active
Patent Citations (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1083146A (en) | 1996-09-05 | 1998-03-31 | Seiko Epson Corp | Electronic photograph stand |
US6339429B1 (en) | 1999-06-04 | 2002-01-15 | Mzmz Technology Innovations Llc | Dynamic art form display apparatus |
US20050087671A1 (en) | 2003-10-28 | 2005-04-28 | Samsung Electronics Co., Ltd. | Display and control method thereof |
KR20050040296A (en) | 2003-10-28 | 2005-05-03 | 삼성전자주식회사 | Display apparatus and control method thereof |
US7202458B2 (en) | 2003-10-28 | 2007-04-10 | Samsung Electronics Co., Ltd. | Display and control method thereof |
US20070070258A1 (en) | 2005-06-29 | 2007-03-29 | Toshiba Matsushita Display Technology Co., Ltd. | Techniques to switch between video display modes |
US20070040033A1 (en) | 2005-11-18 | 2007-02-22 | Outland Research | Digital mirror system with advanced imaging features and hands-free control |
US20080297589A1 (en) | 2007-05-31 | 2008-12-04 | Kurtz Andrew F | Eye gazing imaging for video communications |
US20090122206A1 (en) | 2007-11-08 | 2009-05-14 | Samsung Electronics Co., Ltd. | Remote controller for setting mode according to state of broadcast receiving apparatus |
US9066043B2 (en) | 2007-11-08 | 2015-06-23 | Samsung Electronics Co., Ltd. | Remote controller for setting mode according to state of broadcast receiving apparatus |
US20150172586A1 (en) | 2007-11-08 | 2015-06-18 | Samsung Electronics Co., Ltd. | Remote controller for setting mode according to state of broadcast receiving apparatus |
US9942507B2 (en) | 2007-11-08 | 2018-04-10 | Samsung Electronics Co., Ltd. | Remote controller for setting mode according to state of broadcast receiving apparatus |
US20140036159A1 (en) | 2007-11-08 | 2014-02-06 | Samsung Electronics Co., Ltd. | Remote controller for setting mode according to state of broadcast receiving apparatus |
US20090237423A1 (en) | 2008-03-20 | 2009-09-24 | Capella Microsystems, Corp. | Display apparatus of adjusting gamma and brightness based on ambient light and its display adjustment method |
US20090295787A1 (en) | 2008-06-02 | 2009-12-03 | Amlogic, Inc. | Methods for Displaying Objects of Interest on a Digital Display Device |
US20100026816A1 (en) | 2008-07-30 | 2010-02-04 | Jonathan Bergstrom | Wireless data capture and sharing system, such as image capture and sharing of digital camera images via a wireless cellular network |
US20100064332A1 (en) | 2008-09-08 | 2010-03-11 | Sling Media Inc. | Systems and methods for presenting media content obtained from multiple sources |
US8081197B1 (en) | 2008-12-03 | 2011-12-20 | Adobe Systems Incorporated | System and method for angular image selection |
US20110007141A1 (en) | 2009-07-09 | 2011-01-13 | Sony Corporation | System and method for displaying content on a television in standby mode |
US9911322B2 (en) | 2009-09-03 | 2018-03-06 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US8941530B2 (en) | 2009-09-03 | 2015-01-27 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US9542838B2 (en) | 2009-09-03 | 2017-01-10 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US20150179060A1 (en) | 2009-09-03 | 2015-06-25 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US20110050477A1 (en) | 2009-09-03 | 2011-03-03 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US20180158321A1 (en) | 2009-09-03 | 2018-06-07 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US20140240608A1 (en) | 2009-09-03 | 2014-08-28 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US20170092118A1 (en) | 2009-09-03 | 2017-03-30 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US20130155334A1 (en) | 2009-09-03 | 2013-06-20 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US8988271B2 (en) | 2009-09-03 | 2015-03-24 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
US8432305B2 (en) | 2009-09-03 | 2013-04-30 | Samsung Electronics Co., Ltd. | Electronic apparatus, control method thereof, remote control apparatus, and control method thereof |
KR20110050217A (en) | 2009-11-06 | 2011-05-13 | 엘지전자 주식회사 | Display device and method for providing user interface thereof |
US20130125436A1 (en) | 2010-08-05 | 2013-05-23 | Brendan Morris Vallar | Image Display Apparatus |
US9449427B1 (en) * | 2011-05-13 | 2016-09-20 | Amazon Technologies, Inc. | Intensity modeling for rendering realistic images |
US20130016102A1 (en) * | 2011-07-12 | 2013-01-17 | Amazon Technologies, Inc. | Simulating three-dimensional features |
US20130318458A1 (en) * | 2011-11-21 | 2013-11-28 | Kenton M. Lyons | Modifying Chrome Based on Ambient Conditions |
US20130246954A1 (en) * | 2012-03-13 | 2013-09-19 | Amazon Technologies, Inc. | Approaches for highlighting active interface elements |
US8892284B2 (en) | 2012-07-12 | 2014-11-18 | GM Global Technology Operations LLC | Method and apparatus to determine extrema for controlling a multi-mode powertrain system |
US20140168463A1 (en) | 2012-12-14 | 2014-06-19 | Ryohsuke TAMURA | Image-processing device and imaging apparatus |
US20140351728A1 (en) * | 2013-05-27 | 2014-11-27 | Samsung Electronics Co., Ltd. | Method and apparatus for controlling screen display using environmental information |
US20150058793A1 (en) * | 2013-08-21 | 2015-02-26 | Samsung Electronics Co., Ltd. | Method, apparatus and recording medium for a scrolling screen |
US10592064B2 (en) * | 2013-09-17 | 2020-03-17 | Amazon Technologies, Inc. | Approaches for three-dimensional object display used in content navigation |
US20150135131A1 (en) * | 2013-11-13 | 2015-05-14 | Red Hat, Inc. | Temporally adjusted application window drop shadows |
US20150332622A1 (en) | 2014-05-13 | 2015-11-19 | Google Inc. | Automatic Theme and Color Matching of Images on an Ambient Screen to the Surrounding Environment |
KR20150146375A (en) | 2014-06-19 | 2015-12-31 | 엘지전자 주식회사 | Device for displaying image of digital photo frame, a mobile terminal for controlling the device, method for controlling of the device |
US20160035285A1 (en) | 2014-08-01 | 2016-02-04 | Samsung Electronics Co., Ltd. | Method and apparatus for controlling brightness of an image display |
US9804662B2 (en) | 2014-10-14 | 2017-10-31 | Samsung Electronics Co., Ltd. | Display apparatus and control method for entering pre-power-on mode in standby mode |
US20160103477A1 (en) | 2014-10-14 | 2016-04-14 | Samsung Electronics Co., Ltd. | Display apparatus and controlling method thereof |
US20160198118A1 (en) | 2015-01-06 | 2016-07-07 | Samsung Electronics Co., Ltd. | Display apparatus and display method for displaying image |
KR20160086129A (en) | 2015-01-09 | 2016-07-19 | 삼성전자주식회사 | A display apparatus and a display method |
US20160205337A1 (en) | 2015-01-09 | 2016-07-14 | Samsung Electronics Co., Ltd. | Display apparatus and display method |
KR20160094596A (en) | 2015-01-31 | 2016-08-10 | 조용승 | A system and a method for a digital frame using beacon technology |
US20170196066A1 (en) | 2016-01-06 | 2017-07-06 | Boe Technology Group Co., Ltd. | Backlight, Control Method Thereof and Display Device |
US20170316757A1 (en) * | 2016-04-29 | 2017-11-02 | Samsung Electronics Co., Ltd. | Display apparatus and controlling method thereof |
Non-Patent Citations (7)
Title |
---|
Advisory Action dated Aug. 12, 2019 in co-pending U.S. Appl. No. 15/852,006. |
Final Office dated Jun. 10, 2019 in co-pending U.S. Appl. No. 15/852,006. |
International Search Report, PCT/ISA/210, dated Apr. 5, 2018, in corresponding International Patent Application No. PCT/KR2017/015393. |
Non-final Office Action dated Mar. 1, 2019 in co-pending U.S. Appl. No. 15/852,006. |
Notice of Allowance dated Aug. 30, 2019 in co-pending U.S. Appl. No. 15/852,006. |
U.S. Appl. No. 15/852,006, filed Dec. 22, 2017, Sang Un Yun, Samsung Electronics Co., Ltd. |
Written Opinion, PCT/ISA/237, dated Apr. 5, 2018, in corresponding International Patent Application No. PCT/KR2017/015393. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11250169B2 (en) * | 2019-05-02 | 2022-02-15 | Bank Of America Corporation | System for real-time authenticated obfuscation of electronic data |
Also Published As
Publication number | Publication date |
---|---|
WO2018117754A1 (en) | 2018-06-28 |
KR20180072983A (en) | 2018-07-02 |
US20200098337A1 (en) | 2020-03-26 |
US20180182357A1 (en) | 2018-06-28 |
US10529301B2 (en) | 2020-01-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10930246B2 (en) | Display device for adjusting color temperature of image and display method for the same | |
US10504461B2 (en) | Display apparatus and display method | |
CN106251800B (en) | Display system for enhancing visibility and method thereof | |
KR101992310B1 (en) | Image processing method for display apparatus and image processing apparatus | |
US9502001B2 (en) | Display control method and apparatus for power saving | |
US20160035285A1 (en) | Method and apparatus for controlling brightness of an image display | |
US20160155389A1 (en) | Apparatus and method for controlling video wall | |
US20150116344A1 (en) | Method and apparatus for controlling screen brightness in electronic device | |
US10417997B2 (en) | Display apparatus and controlling method thereof | |
US10147393B2 (en) | Display apparatus and control method thereof | |
US11625089B2 (en) | Changing display resolutions based on context | |
US10395605B2 (en) | Display device and displaying method | |
KR102588126B1 (en) | Display driver integrated circuit and display driving system including the same | |
CN109997354B (en) | Display device and control method thereof | |
US11363193B2 (en) | Electronic apparatus and image correction method thereof | |
KR102563638B1 (en) | Electronic device and method for preventing screen burn-in on display of the electronic device | |
KR20190134370A (en) | Electronic device and method for displaying content of application through display | |
US11232739B2 (en) | Electronic device, color adjustment method, and computer-readable recording medium | |
JP2017203948A (en) | Display device and control method thereof | |
KR102555375B1 (en) | Electronic device for changinh brightness of image data output to edge area of display |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: FINAL REJECTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE AFTER FINAL ACTION FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: AWAITING TC RESP., ISSUE FEE NOT PAID |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |